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Critical Temperature Range in Standard and Ni-bearing Spheroidal Graphite Cast Irons

Ghergu, Roxana Maria and Sertucha, Jon and Thébault, Yannick and Lacaze, Jacques Critical Temperature Range in Standard and Ni-bearing Spheroidal Graphite Cast Irons. (2012) ISIJ International , 52 (11). 2036-2041. ISSN 0915-1559

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Official URL: http://dx.doi.org/10.2355/isijinternational.52.2036

Abstract

Describing the conditions for reaustenitization of spheroidal graphite cast irons is of interest for their heat-treatment after casting, e.g. for manufacturing austempered ductile irons. Differential thermal analysis has been used to characterize the direct eutectoid transformation and the reverse transformation, i.e. the reaustenitization. This has been applied to a standard and a Ni-bearing alloy, with a ferritic matrix for the former, both a ferritic and a pearlitic matrix for the latter. The results are discussed in relation with the stable and metastable three phase fields. While earlier description of the direct eutectoid transformation is confirmed, the one for reverse eutectoid has been found more complex and is amended.

Item Type:Article
Additional Information:Thanks to J-STAGE editor. Originally published in ISIJ International. The definitive version is available at https://www.jstage.jst.go.jp/article/isijinternational/52/11/52_2036/_article
HAL Id:hal-00853822
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > IK4 - Azterlan - Centro de Investigación Metalúrgica (SPAIN)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:23 Aug 2013 14:35

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